HYDRO28288

• Permit No: C1981026
• IBM Index Class Name: Hydrology
• Doc Date: 2/11/1981
• Doc Name: Pond #3 Certification
• From: WYOMING FUEL CO
• To: DNR
• Permit Index Doc Type: Prof Pond Certifications
• Media Type: D
• Archive: No

• ll, S, DEPART9ENT OF AGRICULTURE
SOIL CDNSERVATIO`I SERVICE
Landowner's
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WALDEN POND #3 ~.
t10-EtIG-40
Prv, 3-78
File Code:
RESERVOIR ACID SPILLI•IAY DATA SHEET 'Loopera tors
Folder
f nmpu Crd ~ Chcr.ked '
.__HY~... .. ~ Flats: ,, ~ Av: ~. ": .
H dr ul n u it Sn
~~ il Grn J~, _ Sum of
Land Use Treatment D f __ U Product
___
f,ropl and
41i Viout fon5. Acrrs
--- Cil
1'~ Ar. rr~.
- f,i
,~.; Acrr;
_ _ 1,'I
..;. Acrr; x CN
_..._. ~__f_
4itli Cnns. 74 r;l
-
-~----~ Poor -- --
- ~~ - --
__-__ 1,t
_ -
-
.__- ,I ~ -
_ .___ __
uaS Lure Fair
Good ~9
GI .
i
74 a4
Un
- -
I~u•adnr~r
._~__- Good --
.. 5F. ~~'
--- Il -- !13
poor Cover . hG 77 . R3
Idoodland fair Cover 60 17 1'1
Good Cover 55 ~
~- - 4^
-
- 17 ,
_
-
nnads Incl. R, O.W. H4 70 -~
-- 77 _
^
-
Farmstead
_
-
.--
-
- -- ! 74 11'2
- ~
- Hh ~
- --
Othrr-Src .
~
~
_~____._
_
_ .
iln-2-9 R lu .
Total Product _ -
CN =Drainage Area --~...---!lsr,_._ .....___-.
Fme.rgrnc; Spillway Cnndi Lion (thee v, nor):
Gnnd ~ Fair ^ Paor (]
. Principal ~ Eine rgrncy .. .
'Spilhia~~ S~llway_
Frequency __-. _-'-~--yr. ___.__.__-_)'r•~..
24-flour Rainfall
4latcrshcd Rmioff -
(410-2-i] to 24) __0. 7: _in- --_1-. 0.~-.---I n.
r
PIPE~SI2E AND STORAGE RE UIP.EMEt1TS
--~- - - --
Pipe dia._6: • _in. Kind CMP 12"D.I .
llead 2~.0 f[. .Length 35 ft.!~'
po 0.62 cfs; cfs/ac D.A.= • 18 : ''` '• .
P'
Ora inagr• Arra (U. A. )= - 3__5-_ac. Total Product ~ ~ .
AVAFI A(iLE STnRAGF ~ Temporary Sto ra ge~(From MO-11-10, 19 or'~2.0) _ ~ ac_ft. .
iFlrv.

._.-__ rca fl
Sn. In.
- _ ooded
Acrrs
- Intcrva
Storayr
Ac.-Ft. cC Um.
Storane
Ac.-Ft.
~23~~ ~63 14 ' --
240.5 -_
1.28 _
.30 ,66
-------
- y -

~
^~

,{
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,~~;`,'1
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I'llrsical, nnrA .
Licv: Inlet ! Em.Sln+.
Settled Eill_^_,-_ '
fffective fill height: Ilt = ____-__ - _ft.
Total sttn~agr below emergency spillway:
1'rnduC[ = Ili x ST = _
r!np -Max. discharge through principal 5p11 lway.
Ilp -Design depth flow in Emergency Spillway.
Uo - Cmrrgrncy Spillway Floodroutin9 (MO-11-21,
"ID-11-22 ~t nd MO-11-23).
0~ - Con~ected total discharge (Emergency plus
print lpal discharge).
poe -Emergency Spillway discharge.
Sp -Permanent Storage = 0.4 z Permanent pool
area (ac.) x max• depth water (ft.)
_ f171 ac.. ,.
Temnnrary ~ ae•ft.
Storage (St) _ •021 ac• x 3.5 ac.(D.A.) _ •07 ac. ft.
Stage Required (Principal spillway.to emergency spillway crest
from stage-storage Curve on back MO-ENG-40)
_ 0. 3 ft. ,Stageused =' ~ 1.0 ~ ft ~'
EMERGENCY SPILL4IAY REOUI REHEHTS' ~ ,-::.~, :'~
Stage for Em. Spw. Design: Prin,.Spw. to Em. Spw.aHp=1 ' S 'ft. .
Avaitahle~temporary storage from curve = 0 • 2 6_ac.ft.~
Stor~P = •. 0743 ac.ft/ac. ~ ~ ~ ~'

Uo 33 cfs/ar.. x 3 • 5 ac. • 1.16 cfs
(From FtO=II=-Z ~Z2 nr 23) -(D.1(~ (Untnrrecte
~
,,
, ,
' ',n +..
~ `
yn _ . - '
58
~ forrection Factor ~
C. { '
• 76
-~
n From MD-11-74
Uo (Corrected) 1. 2 cfs x 76 ;_
--
` • 9 cfs ;,
}
'. .
(4o uncorrected).{:;' ; t

Emergency Spil lway Storm Prak (Slope ) _ •cfs
(EFM chp. 2, ES-1027) (MD-2-e) • Usese smeCTer~.:
Emergency Spil lway Design Ntdth (MO-11-15) 0 : 3 ft.
Depth (Ilp) 0 • 5 ft. Freebnnrd 1 ft.
Permissihle vet ocity~in exit section (MO-11-16) _fp5 .
Ifaz. Slope .= X llin. Slope = Z
(MO-11-16) ~ '(MO-11-16) ~ .
,
Exit Slope % Extt Velocity (MO-11-17) ,
fps.,•